Linux / Unix Systems Administrator Jobs in San Jose, CA

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Linux / Unix Systems Administrator, Stf - TS/SCI w/Poly- Sunnyvale, CA

Lockheed Martin Corporation

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Sunnyvale, California, USA

Full-time

Job Description About Us: Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span more than 70 countries. This Lockheed Martin Enterprise Operations (EO) position w
Posted 60+ days ago | Updated 9 hours ago

Linux Systems Administrator, Sr / Secret / Onsite: Sunnyvale, CA

Lockheed Martin Corporation

•

Sunnyvale, California, USA

Full-time

Job Description Join our Lockheed Martin team! Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed martin has employees based in all 50 states and more than 570 facilities that span more than 70 countries. We are hiring a Linux System Adminis
Posted 60+ days ago | Updated 9 hours ago

Systems Engineer (Linux) at Santa Clara CA - Direct Client

SolGenie Technologies, INC

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Santa Clara, California, USA

Full-time, Third Party, Contract

Role: Systems Engineer (linux) Location: Santa Clara, CA (Onsite) Duration: Long Term (3+ years) Linux with Strong Automation ,DevOps Responsibilities: Demonstrated experience in LINUX installation, configuration, and upgrading of Linux systems and servers. Linux OS administration - Ubuntu, Centos, and RedHat Demonstrable experience in Linux Server Support, designing, troubleshooting, and storage implementation. Proven experience in risk-based systems running on UNIX / LINUX platforms along wi
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Posted 2 days ago | Updated 1 day ago

Linux Systems Engineer

Samsung Electronics America

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San Jose, California, USA

Full-time

Position Summary Samsung, a world leader in advanced semiconductor technology, is founded on a simple philosophy - the endless pursuit of excellence will create a better world for all. At Samsung Austin Research and Development Center (SARC) and Advanced Computing Lab (ACL), we are building a center of excellence for Intellectual Property (IP) that is applied to high-performance computing devices (mobile, automotive, and other custom market segments) consumed by millions of people around the wo
Posted 9 hours ago

Unix/Linux Administrator

Parsons Services Company

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Remote

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: This job opening is for an experienced Unix/Linux Administrator to provide systems a
Posted 60+ days ago | Updated 9 hours ago

Linux and Windows Systems Administrator | REMOTE (ship required)

Oracle Corporation

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Remote

Full-time

Job Description Building off our Cloud momentum, Oracle has formed a new organization - Oracle Health & Analytics. This team will focus on product development, operations and product strategy for Oracle Health, while building out a complete platform supporting modernized, automated healthcare. This is a net new line of business, constructed with an entrepreneurial spirit that promotes an energetic and creative environment. We are unencumbered and will need your contribution to make it a world c
Posted 3 days ago | Updated 9 hours ago

Senior Systems Administrator (Australia) - TS/SCI with Polygraph

General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, System Administration, Windows Applications Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is seeking an IT Engineer with Mi
Posted 9 hours ago

Senior Linux System Administrator

General Dynamics

•

Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, Microsoft Server Operating Systems, Microsoft Windows Environment Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: $10K Sign-on bonus A Senior Linux System Administrator Maintains an o
Posted 60+ days ago | Updated 9 hours ago

Operating Systems Specialist- Unix, Windows, & Tomcat (Night/Graveyard Shift)

Ignitec Inc.

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Remote

Contract

Operating Systems Specialist This is a Full-Time (Contract) Remote position supporting United States Postal. Full benefits, PTO, and paid holidays is inclusive to this position. Number of Available Positions: 17 Contract Term: 10/1/2025- 9/30/2026 (With possible extensions) Salary Target: $80K-$125K/YR (Salary is flexible based on the relevant years of professional experience and background related to the position) Requirements: Ability to work Night/Graveyard Shift; Prior experience in supporti
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Posted 20 hours ago

Senior Linux Systems Administrator - REMOTE

First American Financial Corporation

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Remote or Santa Ana, California, USA

Full-time

Who We Are Join a team that puts its People First! Since 1889, First American (NYSE: FAF) has held an unwavering belief in its people. They are passionate about what they do, and we are equally passionate about fostering an environment where all feel welcome, supported, and empowered to be innovative and reach their full potential. Our inclusive, people-first culture has earned our company numerous accolades, including being named to the Fortune 100 Best Companies to Work For list for ten conse
Posted 6 days ago | Updated 9 hours ago

Senior Systems Administrator (Linux/Windows)

GovCIO

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Remote

Full-time

Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is in Washington, DC and will be a hybrid remote with periodic onsite customer work activities. Must be willing to work nights, have an active Sec
Posted 24 days ago | Updated 6 hours ago

Systems Administrator (Windows / Linux) / Hybrid: Highlands Ranch, CO

Lockheed Martin Corporation

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Remote or Highlands Ranch, Colorado, USA

Full-time

Job Description Lockheed Martin's Enterprise Business & Digital Transformation (EBDT) organization employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries.
Posted 21 days ago | Updated 9 hours ago

Software Engineer Graduate (Global SRE) - 2026 Start (BS/MS)

TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A221771A Apply to this job Share this listing: Responsibilities The monetization technology team works on building and running large-scale, globally distributed, fault-tolerant ads systems. SREs keep the systems up and running with the highest level of availability, ensuring our users have the best experience possible. We are looking for talented individuals to join our team in 2026. As a graduate, you will get unparalleled opportun
Posted 9 hours ago

Senior Linux System Administrator

General Dynamics Information Technology

•

Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, Microsoft Server Operating Systems, Microsoft Windows Environment Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: $10K Sign-on bonus A Senior Linux System Administrator Maintains an
Posted 60+ days ago | Updated 21 hours ago

Senior Linux System Administrator

General Dynamics Information Technology

•

Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, Microsoft Server Operating Systems, Microsoft Windows Environment Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: $10K Sign-on bonus A Senior Linux System Administrator Maintains an o
Posted 60+ days ago | Updated 5 hours ago

Systems Administrator - Linux/Windows

GovCIO

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Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr
Posted 60+ days ago | Updated 6 hours ago

Oracle Linux Administrator

NuLeap

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Remote or US

Contract, Third Party

Job Summary Oracle Linux Administrator - Lead enterprise patch management and CVE remediation for Oracle Linux 7.9 and related systems. - Serve as primary escalation point for Oracle Linux support, handling Tier 1 & 2 issues and Oracle support cases. - Apply security patches, OS bug fixes, and ensure security compliance across environments. - Provide 24x7 production support for high-severity incidents and outages. - Perform root cause analysis and document all patching, changes, and updates.
Posted 5 days ago | Updated 3 days ago

Systems Administrator Senior

General Dynamics

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Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, VMware Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Please take this opportunity to join one of GDIT's fastest long-standing growing program
Posted 54 days ago | Updated 9 hours ago

Systems Administrator / Technical Lead - Process Control Systems

Katalyst Healthcares and Lifesciences

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Foster City, California, USA

Full-time

Job Summary: We are looking for an experienced professional who will be responsible for administration of Rockwell FactoryTalk-based process control systems and Inductive Automation's Ignition-based process control and environmental monitoring systems. The candidate should have hands-on experience deploying, configuring, and troubleshooting these systems in a Good Manufacturing Practice (GMP) environment, with a good understanding of FDA regulations. This role focuses on deploying system updates
Posted 60+ days ago | Updated 9 hours ago

Linux System Administrator, Senior

GovCIO

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Remote

Full-time

Overview GovCIO is hiring a Windows and Linux System Administrator (Senior) to support Veterans Affairs operational needs . The role requires AWS, Windows, and Linux administration experience, with strong database management skills, to maintain infrastructure and ensure system security and performance. This position is fully remote within the United States. Responsibilities Plan the transition of development and/or production environments to new technologies. Ensure data integrity and facilit
Posted 8 days ago | Updated 6 hours ago